26993311535189 has 16 divisors (see below), whose sum is σ = 28347603789120. Its totient is φ = 25668285229440.

The previous prime is 26993311535161. The next prime is 26993311535219. The reversal of 26993311535189 is 98153511339962.

It is a cyclic number.

It is not a de Polignac number, because 26993311535189 - 2³² = 26989016567893 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26993311535389) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7763447 + ... + 10689140.

It is an arithmetic number, because the mean of its divisors is an integer number (1771725236820).

Almost surely, 2^{26993311535189} is an apocalyptic number.

26993311535189 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

26993311535189 is a deficient number, since it is larger than the sum of its proper divisors (1354292253931).

26993311535189 is a wasteful number, since it uses less digits than its factorization.

26993311535189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18453380.

The product of its digits is 47239200, while the sum is 65.

The spelling of 26993311535189 in words is "twenty-six trillion, nine hundred ninety-three billion, three hundred eleven million, five hundred thirty-five thousand, one hundred eighty-nine".